Cass County touches the Truman Reservoir headwaters edge

Cass County’s southeastern corner drains toward the Harry S. Truman Reservoir, the large U.S. Army Corps of Engineers lake centered downstream near Warsaw. The South Grand River and related tributaries that run through this part of the county feed the reservoir’s upper arms, so the headwaters edge of that system reaches toward Cass. As a Corps lake, Truman’s pool levels, shoreline use, and any dock or facility rules follow Corps management rather than purely local ones, and the upper, shallower arms behave differently from the main lake. For fishing and wildlife, the Department of Conservation is the authority; for lake levels, shoreline, and floodplain along the tributaries, the Corps’ Kansas City District is the source. Verify exactly how far Truman’s influence extends into Cass before describing any specific access point.